Photographic-print-washing machine



G. M. DYE.

PHOTOGRAPHIC PRINTWASHING MACHINE.

APPLICATION FILED MAR. 61 1920. I 1,416,402; Patented. May 16, 1922.

2 SHEETSSHEET I'.

G. M. DYE PHOTOGRAPHIC I RINT WASHING MACHINE.

. APPLICATION FILED MAR. 6. 1920. 1,416,402.

2 SHEETS-SHEET 2'.

Patented May 16, 1922.

GLEN M. DYE, on MINNEAPOLIS, MINNESOTA, assienon '10 PAKO oonronarron on7 MINNEAPOLIS, ri inivnsore, A CORPORATION on nnneweitPHOTOGRAPHIG-PRINT-WASHING MACI-I INE.

T 0 all whom it may concern Be it known that I, M. DYE,.21 citizen oftheQUnited States, residing at Minneapolis, in the county of 'Hennepinand State 01 Minnesota, have invented certain new and usefulImprovements in Photographic-Print-fishing llilachines; and I do herebvdeclare the followin to be a lull.

clear, and exact description of the invention,

such as will-enable others skilled in the art to which it appertains tomake and use the same. I

My invention has for its special object the provision of an improvedmachine for washing photographic prints, but the machine may be used forvarious other purposes.

Generally stated, the invention consists of the novel devices andcombinations oi devices hereinafter described and defined in the claims.

In the accompanying drawings which illustrate the invention likecharacters indicate like parts throughout the several views.

Referring to the drawings: I I

Fig. 1 is a perspective view showing the washing machine with its rotarydrum raised;

' Fig. 2 is 'a side elevation with the parts in the same position asshown inFigl; and

Fig. 3 is a sectionshowing, in detail, driving elements and.co-o'perating parts sectioned onthe line 3-3 of Fig. 1.

The iiunieral'et indicates a water tank of rectangular horizontalsection, the same being open at its top and having a rounded bottom.This tank is supported by legs 5, the lower portions ofwhich areconnected by transverse and. longitudinal tie bars 6 and 7.respectively.

The numeral 8 indicates a cylindrical drum provided in itsperipheralshell with a door opening 9 and a hinge door 10 for closingsaid opening. This door may be secured in a closed position by slidinglatches 11 mounted on the drum adjacent to one edge of the opening 9.The cylindrical surface of the drum 8, and preferably also its heads andthe door 10 are perforated, so that there will be a continuous and freecirculation of the washing water through and within the drum when thelatter is rotated.

At its ends, the drum 8 is'provided with axially projected trunnions 12that are removably seated in open notches 13 formed Specification ofLetters Patent. Patgn'lwflll Bi iary 316 Application filed March 6,1920. Serial No. 363,854. in

in lifting heads 1%. These lifting heads 14, at thelr upper ends, arepivotally attached to v 11: ring arms lo rig dly secured to a rock shaft210 mounted in suitable bearings 17 on certain or L1G corner posts orlegs 5. The lower ends 01' the lilting heads 14% are pivotallyconnectedto the free ends of guiding links 18,v

the lower ends of which arepivoted to one side of the tank 4e, at pointsconsiderably be low the top thereof.

The arms l5 are provided with stop lugs 19 engage with the upper edge ofthe ends or the tank and limit the downward move-' ment of the drum to.its operative position shown by dotted lines in Fig. 2. One of thetrunnions 12 of the drum is provided with a spur gear 20 which, when thedrum is lowere t. to its operative position stated, meshes with a pinion521 on the inner end of a short shaft 22 that extends through a watertight or packed bearing 23 applied to one of the heads or end plates ofthe tank 4. Theouter' portion of the shatt'QQ, and certain other parts,are located within a housing 24 thatis rigidly secured to the abovenoted head of the tank t. At that portion of its end that is exposedwithin the housing 24, theshaft 22 is provided with a worm gear 25 thatmeshes with a worm 2-6 on a shaft 27 that is journaled in the lowerportion of the housing flahprojects therefrom at one end, and, at

its projecting end is provided with a pulley 28. A belt 29 runs over thepulley 28' and over a pulley 30 on the armature shaft of a motor 31.,suitably mounted on the base at tlorded by the tie bars 6 and 7. v

The housing 24, as shown, is provided with a removable cover plate 26Fwhich, when removed, aliords access to the interior of the housing andpermits lubricatingoil or grease to be inserted into the same.

The numeral 32 indicates a foot pedalor lever that is intermediatelypivoted on a stud ed to be engaged and locked in its depressedpositionwith the drum in its raised posi tion, as shown in Fig. 1, by a lock dog38' drain pipe extended from the bottom of the tank 4 and which isnormally closed.

The numeral 42 indicates an overflow pipe from the tank 4 and thenumeral 43 indicates a water supply pipe which leads from a suitablesource of water supply and delivers water into the bottom of said tank.Obviously, when water is turned on through pipe 43, the water level inthe tank 4 will be maintained at the altitude of overflow pipe 42.

Normally, the drum will be gravity-held in its lowered operativeposition with its gear 20 engaged with a pinion 21, so that the drumwill be rotated when electric motor 31 is in operation, and,underrotation of the drum, the prints therein will be thoroughly washed bythe water contained in the tank and continuously circulated through thedrum.

After the prints have been washed, the drum may be quickly raised, asshownin the drawings by full lines, simply bystepping on the outer endof the treadle lever 32. When the said lever is depressed, the lock dog38 will engage and lock the same, there by holding the drum in itsraised position shown in Fig. 1. When the raised drum is thus supportedit may be rotated until its door opening is turned upward andpositioned, as shown in Figs. 1 and 2, and when so positioned, the locklug 39 of lock dog or arm 39 will engage the notch of lug 40, andthereby hold the drum in the position stated and against accidentalrotation, while the prints are being removed from the drum or appliedtherein.

When the drum is to be lowered to operative position, the operatorsimply kicks the dog 38 out of engagement with the lever 32, therebypermitting the drumv to lower under the action of gravity. l/Vhen thedrum moves downward, the notched lug 40 disengages itselfauton'latioally from the lug of lock dog 39.

When the drum is raised, as shown in Fig. 1, it may, when desired, belifted entirely from its supporting heads 14, inasmuch as its trunnions12 are freely disengageable from open trunnion seats 13.

In actual practice, this machine has been i found highly eflicient foruse in washing photographic prints, and obviously, its washing capacitys very large, inasmuch as a large number of prints can bev placed in thedrum at one time. Moreover, the washing of the prints is complete andthe prints in the washing action are never roughly handled, nor willthey be folded orcreased, but will be kept floating in the water and allof the hypo will be removed from the prints.

What I claim is:

1. In a machine for Washing photographic prints and the like, thecombination with a tank, of a rotary perforated drum working therein,and lever-actuated connections for lifting the drum out of workingposition and for returning the same to working posi tion.

2. In a machine for washing photographic prints and the like thecombination with a tank, of a rotary perforated drum working therein,lever-actuated connections for lifting the drum out of working positionand for returning the same to working position, and a lock operative tohold said drum against rotation when raised, the said lock beingautomatically released by lowering movement of the drum.

3. In a machine for washing photographic prints and the like, thecombination with a tank, of arotary perforated drum working therein,lever-actuated connections for lifting the drum out of workin positionand for returning the same to working position,

a driving pinion for said drum, and a gear mounted on one end of saiddrum and arranged to be moved lnto and out of mesh wlth said pinion bymovements of said drum, respectively, to and from operativev drum isjournaled at its ends, a rock shaft having arms connected to said headsfor vertically moving the same, and lever operated connections foroscillating sald rock shaft.

5. In a machine for washing photographic prints and the like, thecombination with a tank and a perforated rotary drum operated therein,of supporting heads to which said drum is journaled at its ends, a rockshaft having arms connected to'said heads for vertically moving thesame, lever operated connections for oscillating said rock shaft, saidarms having stops engageable with the upper edge of said tank to limitthe downward movement of said drum, and means for rotating said drumwhen in operative position.

6. In machine for washing photographic prints and the like, thecombination with a tank and a perforated rotary drum operated therein,of supporting heads to which said drum is journaled at its ends, a rockremoved from said heads.

7. In a machine for washing photographic prints and the like, thecombination with a tank and a perforated rotary drum operated therein,of supporting heads to which said drum is journaled at its ends, a rockshaft having arms connected to said heads for vertically moving thesame, lever operated connections for oscillating said rock shaft, and adrum looking dog on said rock shaft having an interlocking engagementwith said drum when the latter is raised and serving to preventaccidental rotation thereof, the said drum having a peripheral dooropening that is turned upward when said drum is raised and lockedagainst rotation by said lock dog.

8. In a machine for washing photographic prints, and the like, thecombination with a tank, of a rotary perforated drum working therein, arock shaft having a pair of projecting arms, drum supporting heads hungfrom the ends of said arms, said drum, at its ends, being journaled tosaid head, links connecting the lower ends of said heads to the interiorof said tank, and a foot-actuated lever having a connection to said rockshaft for oscillating the same to raise and lower said drum.

9. In a machine for washing photographic prints, and the like, thecombination with a tank, of a rotary perforated drum working therein, arock shaft having a pair of projecting arms, drum supporting heads hungfrom the ends of said arms, said drum, at its ends, being journaled tosaid head, links connecting the lower ends of said heads to the interiorof said tank, a foot-actuated lever having a connection to saidrocksha-ft for oscillating the same to raise and lower said drum, apower driven pinion positioned within said tank at one end thereof, anda gear carried by one end of said drum and movable into and out of meshwith said pinion by movements of said drum.

10. In a machine for washing photographic prints, and the like, thecombination with a tank, of a rotary perforated drum working therein, arock shaft having a pair of projecting arms, drum supporting heads hungfrom the ends of said arms, said drum, at its ends, being journaled tosaid head, links connecting the lower ends of said heads to the interiorof said tank, a foot-actuated lever having a connection to said rockshaft for oscillating the same to raise and lower said drum, andjournals between said drum and supporting heads being afforded by openseats in said heads and trunnions on said drum.

11. In a machine for washing photographic prints and the like, thecombination with a tank, of a rotary perforated drum working therein,and means for lifting the drum out of working position and for returningthe same to working position.

In testimony whereof I affix my signature.

GLEN M. DYE.

